// https://syzkaller.appspot.com/bug?id=779a64ccaefd969d5d9bc72a7c4fe39598d53884
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <dirent.h>
#include <endian.h>
#include <errno.h>
#include <fcntl.h>
#include <signal.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/prctl.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <time.h>
#include <unistd.h>

static void sleep_ms(uint64_t ms)
{
  usleep(ms * 1000);
}

static uint64_t current_time_ms(void)
{
  struct timespec ts;
  if (clock_gettime(CLOCK_MONOTONIC, &ts))
    exit(1);
  return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000;
}

#define BITMASK(bf_off, bf_len) (((1ull << (bf_len)) - 1) << (bf_off))
#define STORE_BY_BITMASK(type, htobe, addr, val, bf_off, bf_len)               \
  *(type*)(addr) =                                                             \
      htobe((htobe(*(type*)(addr)) & ~BITMASK((bf_off), (bf_len))) |           \
            (((type)(val) << (bf_off)) & BITMASK((bf_off), (bf_len))))

static bool write_file(const char* file, const char* what, ...)
{
  char buf[1024];
  va_list args;
  va_start(args, what);
  vsnprintf(buf, sizeof(buf), what, args);
  va_end(args);
  buf[sizeof(buf) - 1] = 0;
  int len = strlen(buf);
  int fd = open(file, O_WRONLY | O_CLOEXEC);
  if (fd == -1)
    return false;
  if (write(fd, buf, len) != len) {
    int err = errno;
    close(fd);
    errno = err;
    return false;
  }
  close(fd);
  return true;
}

static void kill_and_wait(int pid, int* status)
{
  kill(-pid, SIGKILL);
  kill(pid, SIGKILL);
  int i;
  for (i = 0; i < 100; i++) {
    if (waitpid(-1, status, WNOHANG | __WALL) == pid)
      return;
    usleep(1000);
  }
  DIR* dir = opendir("/sys/fs/fuse/connections");
  if (dir) {
    for (;;) {
      struct dirent* ent = readdir(dir);
      if (!ent)
        break;
      if (strcmp(ent->d_name, ".") == 0 || strcmp(ent->d_name, "..") == 0)
        continue;
      char abort[300];
      snprintf(abort, sizeof(abort), "/sys/fs/fuse/connections/%s/abort",
               ent->d_name);
      int fd = open(abort, O_WRONLY);
      if (fd == -1) {
        continue;
      }
      if (write(fd, abort, 1) < 0) {
      }
      close(fd);
    }
    closedir(dir);
  } else {
  }
  while (waitpid(-1, status, __WALL) != pid) {
  }
}

static void setup_test()
{
  prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0);
  setpgrp();
  write_file("/proc/self/oom_score_adj", "1000");
}

static void execute_one(void);

#define WAIT_FLAGS __WALL

static void loop(void)
{
  int iter;
  for (iter = 0;; iter++) {
    int pid = fork();
    if (pid < 0)
      exit(1);
    if (pid == 0) {
      setup_test();
      execute_one();
      exit(0);
    }
    int status = 0;
    uint64_t start = current_time_ms();
    for (;;) {
      if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid)
        break;
      sleep_ms(1);
      if (current_time_ms() - start < 5 * 1000)
        continue;
      kill_and_wait(pid, &status);
      break;
    }
  }
}

uint64_t r[3] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff};

void execute_one(void)
{
  intptr_t res = 0;
  res = syscall(__NR_socket, 2ul, 2ul, 0);
  if (res != -1)
    r[0] = res;
  memcpy((void*)0x20000700, "filter\000\000\000\000\000\000\000\000\000\000\000"
                            "\000\000\000\000\000\000\000\000\000\000\000\000"
                            "\000\000\000",
         32);
  *(uint32_t*)0x20000720 = 0xe;
  *(uint32_t*)0x20000724 = 4;
  *(uint32_t*)0x20000728 = 0x3a8;
  *(uint32_t*)0x2000072c = 0;
  *(uint32_t*)0x20000730 = 0x1c0;
  *(uint32_t*)0x20000734 = 0x1c0;
  *(uint32_t*)0x20000738 = 0x258;
  *(uint32_t*)0x2000073c = 0x1c0;
  *(uint32_t*)0x20000740 = 0x310;
  *(uint32_t*)0x20000744 = 0x310;
  *(uint32_t*)0x20000748 = 0x310;
  *(uint32_t*)0x2000074c = 0x310;
  *(uint32_t*)0x20000750 = 0x310;
  *(uint32_t*)0x20000754 = 4;
  *(uint64_t*)0x20000758 = 0;
  *(uint32_t*)0x20000760 = htobe32(0x7f000001);
  *(uint8_t*)0x20000764 = 0xac;
  *(uint8_t*)0x20000765 = 0x14;
  *(uint8_t*)0x20000766 = 0x14;
  *(uint8_t*)0x20000767 = 0xbb;
  *(uint32_t*)0x20000768 = htobe32(0);
  *(uint32_t*)0x2000076c = htobe32(0);
  memcpy((void*)0x20000770, "gretap0\000\000\000\000\000\000\000\000\000", 16);
  memcpy((void*)0x20000780, "dummy0\000\000\000\000\000\000\000\000\000\000",
         16);
  *(uint8_t*)0x20000790 = 0;
  *(uint8_t*)0x200007a0 = 0;
  *(uint16_t*)0x200007b0 = 0;
  *(uint8_t*)0x200007b2 = 0;
  *(uint8_t*)0x200007b3 = 0;
  *(uint32_t*)0x200007b4 = 0;
  *(uint16_t*)0x200007b8 = 0x198;
  *(uint16_t*)0x200007ba = 0x1c0;
  *(uint32_t*)0x200007bc = 0;
  *(uint64_t*)0x200007c0 = 0;
  *(uint64_t*)0x200007c8 = 0;
  *(uint16_t*)0x200007d0 = 0x30;
  memcpy((void*)0x200007d2, "addrtype\000\000\000\000\000\000\000\000\000\000"
                            "\000\000\000\000\000\000\000\000\000\000\000",
         29);
  *(uint8_t*)0x200007ef = 0;
  *(uint16_t*)0x200007f0 = 0;
  *(uint16_t*)0x200007f2 = 0;
  *(uint32_t*)0x200007f4 = 0;
  *(uint32_t*)0x200007f8 = 0;
  *(uint16_t*)0x20000800 = 0xf8;
  memcpy((void*)0x20000802, "recent\000\000\000\000\000\000\000\000\000\000\000"
                            "\000\000\000\000\000\000\000\000\000\000\000\000",
         29);
  *(uint8_t*)0x2000081f = 0;
  *(uint32_t*)0x20000820 = 0xfffd;
  *(uint32_t*)0x20000824 = 0;
  *(uint8_t*)0x20000828 = 0x21;
  *(uint8_t*)0x20000829 = 0;
  memcpy((void*)0x2000082a,
         "syz1\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
         "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
         "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
         "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
         "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
         "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
         "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
         "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
         "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
         "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
         "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
         "\000\000\000\000\000\000\000\000\000\000",
         200);
  *(uint8_t*)0x200008f2 = 0;
  *(uint16_t*)0x200008f8 = 0x28;
  memcpy((void*)0x200008fa, "REJECT\000\000\000\000\000\000\000\000\000\000\000"
                            "\000\000\000\000\000\000\000\000\000\000\000\000",
         29);
  *(uint8_t*)0x20000917 = 0;
  *(uint32_t*)0x20000918 = 0;
  *(uint32_t*)0x20000920 = htobe32(0xe0000001);
  *(uint8_t*)0x20000924 = 0xac;
  *(uint8_t*)0x20000925 = 0x1e;
  *(uint8_t*)0x20000926 = 0;
  *(uint8_t*)0x20000927 = 1;
  *(uint32_t*)0x20000928 = htobe32(0);
  *(uint32_t*)0x2000092c = htobe32(0);
  memcpy((void*)0x20000930, "veth1_to_bridge\000", 16);
  memcpy((void*)0x20000940, "erspan0\000\000\000\000\000\000\000\000\000", 16);
  *(uint8_t*)0x20000950 = 0;
  *(uint8_t*)0x20000960 = 0;
  *(uint16_t*)0x20000970 = 0;
  *(uint8_t*)0x20000972 = 0;
  *(uint8_t*)0x20000973 = 0;
  *(uint32_t*)0x20000974 = 0;
  *(uint16_t*)0x20000978 = 0x70;
  *(uint16_t*)0x2000097a = 0x98;
  *(uint32_t*)0x2000097c = 0;
  *(uint64_t*)0x20000980 = 0;
  *(uint64_t*)0x20000988 = 0;
  *(uint16_t*)0x20000990 = 0x28;
  memcpy((void*)0x20000992, "REJECT\000\000\000\000\000\000\000\000\000\000\000"
                            "\000\000\000\000\000\000\000\000\000\000\000\000",
         29);
  *(uint8_t*)0x200009af = 0;
  *(uint32_t*)0x200009b0 = 0;
  *(uint8_t*)0x200009b8 = 0;
  *(uint8_t*)0x200009b9 = 0;
  *(uint8_t*)0x200009ba = 0;
  *(uint8_t*)0x200009bb = 0;
  *(uint8_t*)0x200009bc = 0;
  *(uint8_t*)0x200009bd = 0;
  *(uint8_t*)0x200009be = 0;
  *(uint8_t*)0x200009bf = 0;
  *(uint8_t*)0x200009c0 = 0;
  *(uint8_t*)0x200009c1 = 0;
  *(uint8_t*)0x200009c2 = 0;
  *(uint8_t*)0x200009c3 = 0;
  *(uint8_t*)0x200009c4 = 0;
  *(uint8_t*)0x200009c5 = 0;
  *(uint8_t*)0x200009c6 = 0;
  *(uint8_t*)0x200009c7 = 0;
  *(uint8_t*)0x200009c8 = 0;
  *(uint8_t*)0x200009c9 = 0;
  *(uint8_t*)0x200009ca = 0;
  *(uint8_t*)0x200009cb = 0;
  *(uint8_t*)0x200009cc = 0;
  *(uint8_t*)0x200009cd = 0;
  *(uint8_t*)0x200009ce = 0;
  *(uint8_t*)0x200009cf = 0;
  *(uint8_t*)0x200009d0 = 0;
  *(uint8_t*)0x200009d1 = 0;
  *(uint8_t*)0x200009d2 = 0;
  *(uint8_t*)0x200009d3 = 0;
  *(uint8_t*)0x200009d4 = 0;
  *(uint8_t*)0x200009d5 = 0;
  *(uint8_t*)0x200009d6 = 0;
  *(uint8_t*)0x200009d7 = 0;
  *(uint8_t*)0x200009d8 = 0;
  *(uint8_t*)0x200009d9 = 0;
  *(uint8_t*)0x200009da = 0;
  *(uint8_t*)0x200009db = 0;
  *(uint8_t*)0x200009dc = 0;
  *(uint8_t*)0x200009dd = 0;
  *(uint8_t*)0x200009de = 0;
  *(uint8_t*)0x200009df = 0;
  *(uint8_t*)0x200009e0 = 0;
  *(uint8_t*)0x200009e1 = 0;
  *(uint8_t*)0x200009e2 = 0;
  *(uint8_t*)0x200009e3 = 0;
  *(uint8_t*)0x200009e4 = 0;
  *(uint8_t*)0x200009e5 = 0;
  *(uint8_t*)0x200009e6 = 0;
  *(uint8_t*)0x200009e7 = 0;
  *(uint8_t*)0x200009e8 = 0;
  *(uint8_t*)0x200009e9 = 0;
  *(uint8_t*)0x200009ea = 0;
  *(uint8_t*)0x200009eb = 0;
  *(uint8_t*)0x200009ec = 0;
  *(uint8_t*)0x200009ed = 0;
  *(uint8_t*)0x200009ee = 0;
  *(uint8_t*)0x200009ef = 0;
  *(uint8_t*)0x200009f0 = 0;
  *(uint8_t*)0x200009f1 = 0;
  *(uint8_t*)0x200009f2 = 0;
  *(uint8_t*)0x200009f3 = 0;
  *(uint8_t*)0x200009f4 = 0;
  *(uint8_t*)0x200009f5 = 0;
  *(uint8_t*)0x200009f6 = 0;
  *(uint8_t*)0x200009f7 = 0;
  *(uint8_t*)0x200009f8 = 0;
  *(uint8_t*)0x200009f9 = 0;
  *(uint8_t*)0x200009fa = 0;
  *(uint8_t*)0x200009fb = 0;
  *(uint8_t*)0x200009fc = 0;
  *(uint8_t*)0x200009fd = 0;
  *(uint8_t*)0x200009fe = 0;
  *(uint8_t*)0x200009ff = 0;
  *(uint8_t*)0x20000a00 = 0;
  *(uint8_t*)0x20000a01 = 0;
  *(uint8_t*)0x20000a02 = 0;
  *(uint8_t*)0x20000a03 = 0;
  *(uint8_t*)0x20000a04 = 0;
  *(uint8_t*)0x20000a05 = 0;
  *(uint8_t*)0x20000a06 = 0;
  *(uint8_t*)0x20000a07 = 0;
  *(uint8_t*)0x20000a08 = 0;
  *(uint8_t*)0x20000a09 = 0;
  *(uint8_t*)0x20000a0a = 0;
  *(uint8_t*)0x20000a0b = 0;
  *(uint32_t*)0x20000a0c = 0;
  *(uint16_t*)0x20000a10 = 0x70;
  *(uint16_t*)0x20000a12 = 0xb8;
  *(uint32_t*)0x20000a14 = 0;
  *(uint64_t*)0x20000a18 = 0;
  *(uint64_t*)0x20000a20 = 0;
  *(uint16_t*)0x20000a28 = 0x48;
  memcpy((void*)0x20000a2a, "TEE\000\000\000\000\000\000\000\000\000\000\000"
                            "\000\000\000\000\000\000\000\000\000\000\000\000"
                            "\000\000\000",
         29);
  *(uint8_t*)0x20000a47 = 1;
  *(uint8_t*)0x20000a48 = 0xac;
  *(uint8_t*)0x20000a49 = 0x14;
  *(uint8_t*)0x20000a4a = 0x14;
  *(uint8_t*)0x20000a4b = 0xbb;
  memcpy((void*)0x20000a58, "veth0_to_bond\000\000\000", 16);
  *(uint64_t*)0x20000a68 = 0;
  *(uint8_t*)0x20000a70 = 0;
  *(uint8_t*)0x20000a71 = 0;
  *(uint8_t*)0x20000a72 = 0;
  *(uint8_t*)0x20000a73 = 0;
  *(uint8_t*)0x20000a74 = 0;
  *(uint8_t*)0x20000a75 = 0;
  *(uint8_t*)0x20000a76 = 0;
  *(uint8_t*)0x20000a77 = 0;
  *(uint8_t*)0x20000a78 = 0;
  *(uint8_t*)0x20000a79 = 0;
  *(uint8_t*)0x20000a7a = 0;
  *(uint8_t*)0x20000a7b = 0;
  *(uint8_t*)0x20000a7c = 0;
  *(uint8_t*)0x20000a7d = 0;
  *(uint8_t*)0x20000a7e = 0;
  *(uint8_t*)0x20000a7f = 0;
  *(uint8_t*)0x20000a80 = 0;
  *(uint8_t*)0x20000a81 = 0;
  *(uint8_t*)0x20000a82 = 0;
  *(uint8_t*)0x20000a83 = 0;
  *(uint8_t*)0x20000a84 = 0;
  *(uint8_t*)0x20000a85 = 0;
  *(uint8_t*)0x20000a86 = 0;
  *(uint8_t*)0x20000a87 = 0;
  *(uint8_t*)0x20000a88 = 0;
  *(uint8_t*)0x20000a89 = 0;
  *(uint8_t*)0x20000a8a = 0;
  *(uint8_t*)0x20000a8b = 0;
  *(uint8_t*)0x20000a8c = 0;
  *(uint8_t*)0x20000a8d = 0;
  *(uint8_t*)0x20000a8e = 0;
  *(uint8_t*)0x20000a8f = 0;
  *(uint8_t*)0x20000a90 = 0;
  *(uint8_t*)0x20000a91 = 0;
  *(uint8_t*)0x20000a92 = 0;
  *(uint8_t*)0x20000a93 = 0;
  *(uint8_t*)0x20000a94 = 0;
  *(uint8_t*)0x20000a95 = 0;
  *(uint8_t*)0x20000a96 = 0;
  *(uint8_t*)0x20000a97 = 0;
  *(uint8_t*)0x20000a98 = 0;
  *(uint8_t*)0x20000a99 = 0;
  *(uint8_t*)0x20000a9a = 0;
  *(uint8_t*)0x20000a9b = 0;
  *(uint8_t*)0x20000a9c = 0;
  *(uint8_t*)0x20000a9d = 0;
  *(uint8_t*)0x20000a9e = 0;
  *(uint8_t*)0x20000a9f = 0;
  *(uint8_t*)0x20000aa0 = 0;
  *(uint8_t*)0x20000aa1 = 0;
  *(uint8_t*)0x20000aa2 = 0;
  *(uint8_t*)0x20000aa3 = 0;
  *(uint8_t*)0x20000aa4 = 0;
  *(uint8_t*)0x20000aa5 = 0;
  *(uint8_t*)0x20000aa6 = 0;
  *(uint8_t*)0x20000aa7 = 0;
  *(uint8_t*)0x20000aa8 = 0;
  *(uint8_t*)0x20000aa9 = 0;
  *(uint8_t*)0x20000aaa = 0;
  *(uint8_t*)0x20000aab = 0;
  *(uint8_t*)0x20000aac = 0;
  *(uint8_t*)0x20000aad = 0;
  *(uint8_t*)0x20000aae = 0;
  *(uint8_t*)0x20000aaf = 0;
  *(uint8_t*)0x20000ab0 = 0;
  *(uint8_t*)0x20000ab1 = 0;
  *(uint8_t*)0x20000ab2 = 0;
  *(uint8_t*)0x20000ab3 = 0;
  *(uint8_t*)0x20000ab4 = 0;
  *(uint8_t*)0x20000ab5 = 0;
  *(uint8_t*)0x20000ab6 = 0;
  *(uint8_t*)0x20000ab7 = 0;
  *(uint8_t*)0x20000ab8 = 0;
  *(uint8_t*)0x20000ab9 = 0;
  *(uint8_t*)0x20000aba = 0;
  *(uint8_t*)0x20000abb = 0;
  *(uint8_t*)0x20000abc = 0;
  *(uint8_t*)0x20000abd = 0;
  *(uint8_t*)0x20000abe = 0;
  *(uint8_t*)0x20000abf = 0;
  *(uint8_t*)0x20000ac0 = 0;
  *(uint8_t*)0x20000ac1 = 0;
  *(uint8_t*)0x20000ac2 = 0;
  *(uint8_t*)0x20000ac3 = 0;
  *(uint32_t*)0x20000ac4 = 0;
  *(uint16_t*)0x20000ac8 = 0x70;
  *(uint16_t*)0x20000aca = 0x98;
  *(uint32_t*)0x20000acc = 0;
  *(uint64_t*)0x20000ad0 = 0;
  *(uint64_t*)0x20000ad8 = 0;
  *(uint16_t*)0x20000ae0 = 0x28;
  memcpy((void*)0x20000ae2, "\000\000\000\000\000\000\000\000\000\000\000\000"
                            "\000\000\000\000\000\000\000\000\000\000\000\000"
                            "\000\000\000\000\000",
         29);
  *(uint8_t*)0x20000aff = 0;
  *(uint32_t*)0x20000b00 = 0xfffffffe;
  syscall(__NR_setsockopt, r[0], 0, 0x40, 0x20000700ul, 0x408ul);
  res = syscall(__NR_socket, 0x10ul, 3ul, 0);
  if (res != -1)
    r[1] = res;
  *(uint64_t*)0x20000040 = 0;
  *(uint32_t*)0x20000048 = 0;
  *(uint64_t*)0x20000050 = 0x20000000;
  *(uint64_t*)0x20000000 = 0x20000340;
  memcpy((void*)0x20000340, "\x48\x00\x00\x00\x10\x00\x05\x1e\x00\x00\x00\x00"
                            "\x00\x00\x00\x00\x00\x00\x00\x00",
         20);
  *(uint32_t*)0x20000354 = -1;
  memcpy((void*)0x20000358, "\x00\x00\x00\x00\x00\x00\x00\x00\x28\x00\x12\x00"
                            "\x0c\x00\x01\x00\x76\x65\x74\x68",
         20);
  *(uint64_t*)0x20000008 = 0x48;
  *(uint64_t*)0x20000058 = 1;
  *(uint64_t*)0x20000060 = 0;
  *(uint64_t*)0x20000068 = 0;
  *(uint32_t*)0x20000070 = 0;
  syscall(__NR_sendmsg, r[1], 0x20000040ul, 0ul);
  syscall(__NR_sendmsg, -1, 0ul, 0ul);
  res = syscall(__NR_socket, 0x10ul, 3ul, 0xc);
  if (res != -1)
    r[2] = res;
  *(uint64_t*)0x200000c0 = 0;
  *(uint32_t*)0x200000c8 = 0;
  *(uint64_t*)0x200000d0 = 0x20000040;
  *(uint64_t*)0x20000040 = 0x20000140;
  *(uint32_t*)0x20000140 = 0x2c;
  *(uint8_t*)0x20000144 = 0;
  *(uint8_t*)0x20000145 = 0xb;
  *(uint16_t*)0x20000146 = 3;
  *(uint32_t*)0x20000148 = 0;
  *(uint32_t*)0x2000014c = 0;
  *(uint8_t*)0x20000150 = 3;
  *(uint8_t*)0x20000151 = 0;
  *(uint16_t*)0x20000152 = htobe16(0);
  *(uint16_t*)0x20000154 = 5;
  *(uint16_t*)0x20000156 = 1;
  memcpy((void*)0x20000158, "\000", 1);
  *(uint16_t*)0x2000015c = 8;
  STORE_BY_BITMASK(uint16_t, , 0x2000015e, 3, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x2000015f, 1, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x2000015f, 0, 7, 1);
  *(uint32_t*)0x20000160 = htobe32(0);
  *(uint16_t*)0x20000164 = 8;
  STORE_BY_BITMASK(uint16_t, , 0x20000166, 2, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x20000167, 1, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x20000167, 0, 7, 1);
  *(uint32_t*)0x20000168 = htobe32(0);
  *(uint64_t*)0x20000048 = 0x2c;
  *(uint64_t*)0x200000d8 = 1;
  *(uint64_t*)0x200000e0 = 0;
  *(uint64_t*)0x200000e8 = 0;
  *(uint32_t*)0x200000f0 = 0;
  syscall(__NR_sendmsg, r[2], 0x200000c0ul, 0ul);
}
int main(void)
{
  syscall(__NR_mmap, 0x1ffff000ul, 0x1000ul, 0ul, 0x32ul, -1, 0ul);
  syscall(__NR_mmap, 0x20000000ul, 0x1000000ul, 7ul, 0x32ul, -1, 0ul);
  syscall(__NR_mmap, 0x21000000ul, 0x1000ul, 0ul, 0x32ul, -1, 0ul);
  loop();
  return 0;
}